Zero or 0 - Refers to the binary complement of One or 1. Sometimes it is an expression to represent “nothing” or “nil”. It is also the last symbol of the following sequence: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.

Zero Assignment Langauge - Refers to a language consiting entirely of functions and no variables.

ZIF - Refers to Zero Insertion Force; a term used to describe a specific socket for Intel® Pentium chips.

Z-Index Property or Z Index Property - Refers to defining the stackable order of elements.

ZMODEM - Refers to a batch file transfer protocol with resume and error checking developed by Chuck Forsberg. This protocol does not wait for ACKs after each packet is sent, but instead it streams the data like YMODEM-G. Since this protocol supports resume, a transfer interupted in transit can pick up where it left off. This is the most preferred protocol for sending files to and from BBSes that do not support the TCP/IP FTP protocol.